package com.example.web_task.handler;

import com.example.web_task.entity.Result;
import com.example.web_task.exception.BaseException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理器，处理项目中抛出的业务异常
 */
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 捕获业务异常
     * @param ex
     * @return
     */
    @ExceptionHandler
    public Result exceptionHandler(BaseException ex){
        log.error("异常信息：{}", ex.getMessage());
        return Result.error(ex.getMessage());
    }
    @ExceptionHandler
    public Result exceptionHandler(SQLIntegrityConstraintViolationException ex){
        //Duplicate entry '123' for key 'idx_username'
        log.info("捕获到SQL异常");
        String exMessage = ex.getMessage();
        log.info("错误信息{}",exMessage);
        ex.printStackTrace();
        if(exMessage.contains("Duplicate entry")){
            String[] split = exMessage.split(" ");
            String msg=split[2]+ "已存在";
            return Result.error(msg);
        }
        else{
            return Result.error("未知错误");
        }


    }

}
